Demography is a broad social science discipline. (What is Demography) The word demography comes from the Greek word demos, which means population and graphy, which means to describe or draw. (Luczkovich) In its most simplistic terms, demography is the study of how human population changes. Various data is collected and then analyzed to see how populations have changed over a period of time, and to predict how they will act in the future. These changes occur due to births, deaths, immigration, emigration, and natural aging. Demography can be studied as a study of the Earths entire population, or by specific groups such as: geographic area, age, gender, race, nationality, and a variety of other aspects.
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